Finding the Fourth Proportional to 282,460.85, 423,705.86 and 72,100.61

Step by Step Solution

1. Step 1: Write the proportion equation
   282,460.85 : 423,705.86 = 72,100.61 : x
2. Step 2: Convert to fraction form
   282,460.85/423,705.86 = 72,100.61/x
3. Step 3: Cross multiply
   282,460.85x = 423,705.86 × 72,100.61
4. Step 4: Simplify right side
   282,460.85x = 30,549,448,487.54
5. Step 5: Solve for x
   x = 30,549,448,487.54/282,460.85
6. Step 6: Final answer
   x = 108,154.63